<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    
    <!-- <div>
        Lorem ipsum, dolor 
        sit amet consectetur adipisicing elit. Quidem 
        culpa fugit sunt error, deserunt facere, natus incidunt 
        repellendus dolore corporis voluptatibus dolores optio odit distinctio, rem amet cum qui? Maxime!
    </div> -->
    
    <!-- <input type="button" value="提交" font-size="3px"> -->

    <!-- <a href="#">链接</a> -->
    
    <div>
        Lorem ipsum dolor sit amet consectetur adipisicing elit. Laudantium sunt quo quidem numquam atque sit hic
         explicabo dignissimos quam dolorem vel eos voluptas quos illum dolorum dolor, fuga facere eaque!
    </div>
    <style>
        /* 设置圆角矩形 */
        /* div{
            font-size: 3px;
            width: 500px;
            height: 200px;
            color: rgb(0, 0, 128);
            background-color: #9f0000;
            text-align: center;
            border-radius: 20px; 
            border-radius: 25%;
        } */

        /* 设置圆形 */
        /* div{
            font-size: 3px;
            width: 200px;
            height: 200px;
            color: black;
            background-color: #0000f0;
            border-radius: 50%;
        } */

        /* 设置胶囊形状 */
        /* input{
            font-size: 3px;
            width: 200px;
            height: 20px;
            color: black;
            background-color: #0000d0;
            border-radius: 10px;
        } */
        
        /* 复合写法 */
        /* input{
            font-size: 3px;
            width: 200px;
            height: 20px;
            color: black;
            background-color: #00d0d0;
            border-radius: 0 10px 0 10px;
            border-top-left-radius: 10px;
            border-top-right-radius: 0px;
            border-bottom-right-radius: 10px;
            border-bottom-left-radius: 0px;
        } */
        
        /* 行内元素该为块状元素 */
        /* a{
            display: block;
            height:100px;
            width:200px;
            text-align: center;
            background-color: #00d0d0;
        } */
        
        /* border边框 */
        div{
            width: 200px;
            height: 50px;
            border: 10px inset #00d0d0; 
        }
        
        
    </style>
</body>
</html>